Accuracy improvement of the immersed boundary-lattice Boltzmann coupling scheme by iterative force correction
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- 作者：Chunze Zhanga ; Yongguang Chenga ; ygcheng@whu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Luoding Zhub ; lzhu@math.iupui.edu" class="auth_mail" title="E-mail the corresponding author ; Jiayang Wua
- 关键词：Immersed boundary method ; Lattice Boltzmann method ; Fluid&ndash ; structure interaction ; Non-slip boundary condition ; External forcing term ; Mechanical heart valves ; Iterative method
- 刊名：Computers and Fluids
- 出版年：2016
- 出版时间：2 January 2016
- 年：2016
- 卷：124
- 期：Complete
- 页码：246-260
- 全文大小：5763 K
文摘
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An iterative force correction for the IB–LB scheme is proposed.
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Instead of the delta function, the Lagrange interpolation is used to obtain the IB speed.
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The non-slip boundary conditions can be enforced accurately at the IB points.
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A mechanical heart valve flow is simulated.
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Better agreements with experimental data are achieved.